Antislipping shoe-sole.



UNI-TED-srArEsrNrnNr cerros.

JoHN e. noUeHTY AND IJf'isnrilfra. sANroim),'or,wiNsrE-i),'coNNEcTicUin AssleNoes 'ro THE FLEXIBLE RUBBER GOODS COMPANY, CONNECTICUT, A CORPORATION or ooNNEoToUT;

ANTI'sLrPrNG stron-soms.

vPat-.ented Feb. 2, 1909.

Application mea :une 2,1908. semi No. 436,2765.

" To all 'whom'it may concern:

United States, residing at Winsted, Litchfield county', Connecticut,- have invented cer- Slipplin a fu c ear, and exact description. Our invention relates" to improvements in l0 anti-slipping treads for shoe soles.

The object thereof is to provide a sole tread with suction holding means which will afford a firm grip yupon the giianid, and particularly to rovidea construction in which` the suction nc'tion will .remain after'a very considerablezwear ofthe sole. lA further object is to provide for the tomatic expulsion of foreign natter from the suction soc etsof'the tread.

A preferred formpf 'our' invention is illus-ftrated` in the accompanying drawings, in.

which, v lFigure lis a plan viewfof the sole tread villustrating our invention; ',/F tional vdetail of o nef' of thev lsuction sockets.

Figs. A3 and 4 are sectional detail views showing modifications of the form of suction socket. l

. In the embodiment' of our invention here selected forillustrati'on, .the vsole treadcon-v v sists of a body ortion 1 of resilientmaterial,

.i referably rub er, provided upon its sole andl eel portions with a plurality of anti-slipping projections 2. These projections are sock- I eted at 3 to provi'de'the required suction hold upon-the groundl j Referring more particularly to Fig. 2, the' socket may be formed .with straight walls at "right angles to the tread surface, or as inFig.

l' 40 3 the socketS -may be formed in the shape of a truncated cone,v or, 'a sie further-modifi cation, the-socket 32l inaylie" formed with an enlargement 4 at the base.

Inall forms of the sockets 'it wili b'elnoticed "1. 45 that the same extend Wellfwithin the body e yportion 1 of the sole, this construction being particularlyl advantageous for the reason that when some or all f'lthenproectionsare vworn away in use, there will stil remain 111 f the sole tread a considerable socket Jarea for ig. 2 is a secv lperforming the suction function. Further- Be 1t known thatrwe, JOHN G. DoUGnTY and 'JOSEPH R. SANFORD, citizens Aof the more, the extension of the sockets into the sole vbodyadds materially to the resilient feature' of the socket projections 2, whereby easy .tread is attained. J

tain new and useful Improvements in .Anti- ,l f .By reason of the compressibility of the nia- Shoe-Soles, of which the following-is' terial of Which the sole is constructefhany foreign matter which enters the sockets when the sole is in use, will be considerably compressed by the collapse of the Walls of the socket under the weight ofthe wearer, which vwalls, in springing back to their normal position on cessation ofpressure, will be more or less freedfrom the mass of foreign matter.

At .the same time, the bases of the sockets pressed by the presence of the foreign matter under pressure, in springing back to their normal ositions will coact with the releasing veffect of) the walls to eject lsaid' material from the sockets, v

'While' several forms of socket projections and socketshave herein been illustrated, it is e5V` which will have become more or less' com- `obvious that the same maybe varied with- A .outdeparting from the spirit. and scope of our invention.

What We claim is;

, 1. A sole tread consisting of resilient material having formed thereon a plurality of relativelysmall anti-s1ipping tubular projec tions, each rojection having a bore extending' theret rough and into the body of the sole, the cross-sectional area of each bore beyond thebaseof its respective projection being as great as the cross-sectional area of the -bore in t'he body vof the projection.

` 2. A sole tread consistingof resilient material having formed thereon a plurality of relativelysmall''antifslipping tubular projections, each projection having 'a bore extending therethrough and into the body ofthe sole, the crosssectional area ofeach bore beyond' the base of its respective ,projection be.

ingv greater than the cross-sectional area of the'bore in the body of the ro`ection.

' JOHN\ G. O. GHTY. `JOSEPH R. SANFORD..

Witnesses:

" WILBER G. MANCHESTER,

I oiIsE BJ PLUMB. 

